Enum libp2p_kad::handler::KademliaHandlerEvent[−][src]

pub enum KademliaHandlerEvent<TUserData> {
    ProtocolConfirmed {
        endpoint: ConnectedPoint,
    },
    FindNodeReq {
        key: Vec<u8>,
        request_id: KademliaRequestId,
    },
    FindNodeRes {
        closer_peers: Vec<KadPeer>,
        user_data: TUserData,
    },
    GetProvidersReq {
        key: Key,
        request_id: KademliaRequestId,
    },
    GetProvidersRes {
        closer_peers: Vec<KadPeer>,
        provider_peers: Vec<KadPeer>,
        user_data: TUserData,
    },
    QueryError {
        error: KademliaHandlerQueryErr,
        user_data: TUserData,
    },
    AddProvider {
        key: Key,
        provider: KadPeer,
    },
    GetRecord {
        key: Key,
        request_id: KademliaRequestId,
    },
    GetRecordRes {
        record: Option<Record>,
        closer_peers: Vec<KadPeer>,
        user_data: TUserData,
    },
    PutRecord {
        record: Record,
        request_id: KademliaRequestId,
    },
    PutRecordRes {
        key: Key,
        value: Vec<u8>,
        user_data: TUserData,
    },
}

Event produced by the Kademlia handler.

Variants

ProtocolConfirmed

The configured protocol name has been confirmed by the peer through a successfully negotiated substream.

This event is only emitted once by a handler upon the first successfully negotiated inbound or outbound substream and indicates that the connected peer participates in the Kademlia overlay network identified by the configured protocol name.

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Fields of ProtocolConfirmed

endpoint: ConnectedPoint
FindNodeReq

Request for the list of nodes whose IDs are the closest to key. The number of nodes returned is not specified, but should be around 20.

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Fields of FindNodeReq

key: Vec<u8>

The key for which to locate the closest nodes.

request_id: KademliaRequestId

Identifier of the request. Needs to be passed back when answering.

FindNodeRes

Response to an KademliaHandlerIn::FindNodeReq.

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Fields of FindNodeRes

closer_peers: Vec<KadPeer>

Results of the request.

user_data: TUserData

The user data passed to the FindNodeReq.

GetProvidersReq

Same as FindNodeReq, but should also return the entries of the local providers list for this key.

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Fields of GetProvidersReq

key: Key

The key for which providers are requested.

request_id: KademliaRequestId

Identifier of the request. Needs to be passed back when answering.

GetProvidersRes

Response to an KademliaHandlerIn::GetProvidersReq.

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Fields of GetProvidersRes

closer_peers: Vec<KadPeer>

Nodes closest to the key.

provider_peers: Vec<KadPeer>

Known providers for this key.

user_data: TUserData

The user data passed to the GetProvidersReq.

QueryError

An error happened when performing a query.

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Fields of QueryError

error: KademliaHandlerQueryErr

The error that happened.

user_data: TUserData

The user data passed to the query.

AddProvider

The peer announced itself as a provider of a key.

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Fields of AddProvider

key: Key

The key for which the peer is a provider of the associated value.

provider: KadPeer

The peer that is the provider of the value for key.

GetRecord

Request to get a value from the dht records

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Fields of GetRecord

key: Key

Key for which we should look in the dht

request_id: KademliaRequestId

Identifier of the request. Needs to be passed back when answering.

GetRecordRes

Response to a KademliaHandlerIn::GetRecord.

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Fields of GetRecordRes

record: Option<Record>

The result is present if the key has been found

closer_peers: Vec<KadPeer>

Nodes closest to the key.

user_data: TUserData

The user data passed to the GetValue.

PutRecord

Request to put a value in the dht records

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Fields of PutRecord

record: Recordrequest_id: KademliaRequestId

Identifier of the request. Needs to be passed back when answering.

PutRecordRes

Response to a request to store a record.

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Fields of PutRecordRes

key: Key

The key of the stored record.

value: Vec<u8>

The value of the stored record.

user_data: TUserData

The user data passed to the PutValue.

Trait Implementations

impl<TUserData: Debug> Debug for KademliaHandlerEvent<TUserData>[src]

Auto Trait Implementations

impl<TUserData> !RefUnwindSafe for KademliaHandlerEvent<TUserData>

impl<TUserData> Send for KademliaHandlerEvent<TUserData> where
    TUserData: Send, 

impl<TUserData> Sync for KademliaHandlerEvent<TUserData> where
    TUserData: Sync, 

impl<TUserData> Unpin for KademliaHandlerEvent<TUserData> where
    TUserData: Unpin, 

impl<TUserData> !UnwindSafe for KademliaHandlerEvent<TUserData>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T> Same<T> for T[src]

type Output = T

Should always be Self

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, [src]